in a cbs news poll of uncommitted voters taken right after the debate, 50% thought vice president biden won. >> these guys bet against america all the time. >> reporter: other polls gave ryan the edge. >> this is what politicians do when they don't have a record to run on. try to scare people from voting for you. >> reporter: it remains to be seen if last night's showdown will sway voters. his torians say the past eight vice presidential debates had almost no affect on the election. danielle nottingham, cbs news, the white house. >>> mitt romney and president obama's next meeting will be a town hall style in new york on tuesday. then their final debate will take place october 22 in florida. >>> well, the komen three-day walk for the cure is under way. participants gathered r the opening ceremonies and the first leg of their 60-mile journey this morning. the walkers are looking to raise money and make a personal difference in the fight against breast cancer. >> i'm an oncologist in new york. my sister passed away from breast cancer. we're walking in her honor and in honor of all the pati